GIS Dictionary

1 [linear referencing] In linear referencing, a measure value that is added to a line feature. M-values are used to […]

[programming] A computer program, usually a text file, containing a sequence of commands that are executed as a single command.

[navigation] A bearing measured relative to magnetic north.

[geodesy] The angle between magnetic north and true north observed from a point on the earth. Magnetic declination varies from

[geography] The direction from a point on the earth’s surface following a great circle toward the magnetic north pole, indicated

[physics] An instrument used to measure variations in the strength and direction of the earth’s magnetic field.

[ESRI software] A secondary window in ArcMap data view that shows a magnified view of a small area without changing

[ESRI software] A license that has a current maintenance contract with ESRI Customer Service. ESRI software users who have maintenance

[computing] The date a maintenance contract expires for a particular product. Multiple copies of the same product may expire on

The longer axis of an ellipse or spheroid.

[spatial statistics use for geostatistics] A technique for resampling raster data in which the value of each cell in an